Thank you for the response Ronin42. I’m glad to hear.
I will try to comment current issues through the prism of this project.
My Poweradd 14W is about 10W in a real life. But there are so many factors that could influence on the output parameters, in most cases users do not realize how to provide correct measurement. So, it’s a usual situation, when max specifications doesn’t not match. I do not exclude manufacturer’s fault. Yeah…, more powerful and quality solar panel, mppt controller have to solve this issue.
I appreciate high CRI light but it has much lower efficiency compared to normal CRI led bins. Sometimes it’s really hard to notice the color difference at the same temperature. I suppose that HICRI is not so important while reading, because paper color is mainly black and white. High CRI XHP Cree series has a bright future, they’re more powerful than Nichia leds and allows to get more lm/W. In addition EasyWhite technology helps to achieve more stable color without artefacts. Here’re the test reports of Nichia218B/XHP50.
https://drive.google.com/open?id=0B5UZoGmkPR9URTQzMUlnQm1vN1E
https://drive.google.com/open?id=0B5UZoGmkPR9UbnNkN0prMy1tdFk
As for more flexibility of a separate concept rather than everything in one. There’s no doubts, everything depends on the needs. Devices are usually fit on each other, if one of them does not meet the requirements the other one can be chosen. A separate device could have more functions as a result good flexibility. It’s all up to you, what exactly you want take. But I don’t want to pay for unused functions.
This project called “wide functional” because it combines a sufficient amount of quality functions for the outdoor/hiking/city usage. First of all I look at characteristics, some of the them are unique and rather hard to find analogs, therefore I appreciate customs. Of course it can’t be perfect for everyone. I’m on your side and understand why you decided to choose this way.
The question is next, what can I improve? There’s no other li-ion mppt charger on sale but 1.7A must be enough for a single li-ion. Headlamp power (at the moment 1.2W and 2.5W turbo) depends on the heatsink and power supply. I chose plastic case for a several reasons. 3D printing is cheap and available for everyone, easier to manufacture, can be made aluminium case from 3D model in future. No sense to develop another one headlamp like zebralight/skilhunt, their customs is also on sale. But I’m ready for the experiments.